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Karrier ST225/75R15 Radial Trailer Tire with 15" Galvanized Wheel - 6 on 5-1/2 - Load Range D

Karrier ST225/75R15 Radial Trailer Tire with 15" Galvanized Wheel - 6 on 5-1/2 - Load Range D

Item # AM32666
Our Price: $235.22
You Save: $140.32
Trailer Tires and Wheels
Shipping Weight: 50 lbs
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Trailer Tires and Wheels AM32666 - Steel Wheels - Galvanized,Boat Trailer Wheels - Kenda
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Radial tire has a ply rating of 8 and a 2,540-lb maximum load at 65 psi. The 15" diameter x 6" wide steel trailer wheel features a 6 on 5-1/2 bolt pattern and a corrosion-resistant galvanized finish. Great Prices for the best trailer tires and wheels from Kenda. Karrier ST225/75R15 Radial Trailer Tire with 15" Galvanized Wheel - 6 on 5-1/2 - Load Range D part number AM32666 can be ordered online at or call 1-800-940-8924 for expert service.
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Kenda Trailer Tires and Wheels - AM32666

  • Tire with Wheel
  • 15 Inch
  • 6 on 5-1/2 Inch
  • 225/75-15
  • Load Range D
  • Steel Wheels - Galvanized
  • Boat Trailer Wheels
  • Radial Tire
  • M - 81 mph
  • Kenda

Radial tire has a ply rating of 8 and a 2,540-lb maximum load at 65 psi. The 15" diameter x 6" wide steel trailer wheel features a 6 on 5-1/2 bolt pattern and a corrosion-resistant galvanized finish.


  • Kenda Karrier special trailer radial tire
    • Special trailer tire design
      • Couples the strength of a bias tire with the durability and stability of a radial tire
      • Created specifically for trailers and not intended for use on other vehicles
    • Double steel belts and full nylon plies combine for superior function and long life
    • Computer-generated tread design and premium rubber-compound materials
      • Superior traction in wet or dry conditions
  • 8-Spoke steel wheel is galvanized to resist rust
  • Tire-and-wheel assembly meets Department of Transportation specifications


  • Rim dimensions: 15" diameter x 6" wide
  • Bolt pattern: 6 on 5-1/2"
  • Wheel capacity: 2,600 lbs
  • Wheel bolt size: 1/2"-20
  • Offset: 0
  • Pilot diameter: 4.27"
  • Tire size: ST225/75R15
    • Section width: 8.9"
    • Outer diameter (when inflated): 28.4"
  • Tire capacity:
    • Load range: D
    • Ply rating: 8
    • Maximum load: 2,540 lbs at 65 psi
  • Maximum speed: 81 mph (speed rating M)
  • Warranty:
    • 5-Year on tire
    • Limited 2-year on wheel

1-Year Worry-Free Guarantee

This tire has a 1-year worry-free guarantee. If within the first 12 months the tire is damaged in any way, it will be replaced at no charge.

Radial Tires vs. Bias Tires

Radial tire vs bias tire graphic

Radial ply tires are designed for trailers that are towed on the highway. The cords on a radial tire are positioned at a 90-degree angle to the direction of travel so that they lay across the width of the tire from wheel lip to wheel lip. This construction prevents the cords from rubbing against one another when the tire flexes, unlike the cords on a bias ply tire. As a result, radial tires have less rolling resistance and heat buildup, which leads to a longer tread life and improved steering at higher speeds.

Determining the Bolt Pattern

The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.

Bolt Pattern - Odd

To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: "5 on 4-1/2" means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)

Bolt Pattern - Even

On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: "8 on 6-1/2" means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)

Bolt Pattern - Side

Measuring the distance from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.

  • If D = 2-5/8", then the bolt pattern is 5 on 4-1/2"
  • If D = 2-3/4", then the bolt pattern is 5 on 4-3/4"
  • If D = 3", then the bolt pattern is 5 on 5"
  • If D = 3-1/4", then the bolt pattern is 5 on 5-1/2"

32666 8-Spoke 15" Galvanized Wheel and Karrier KR03 Radial Tire - LR D

Customer Satisfaction Score:

Customer Reviews

Karrier ST225/75R15 Radial Trailer Tire with 15" Galvanized Wheel - 6 on 5-1/2 - Load Range D - AM32666

Average Customer Rating:  4.8 out of 5 stars   (1453 Customer Reviews)

Radial tire has a ply rating of 8 and a 2,540-lb maximum load at 65 psi. The 15" diameter x 6" wide steel trailer wheel features a 6 on 5-1/2 bolt pattern and a corrosion-resistant galvanized finish.


I bought these over a year ago. Couldn’t be more happier. Rides smooth just like the day I put them on


Product was received as ordered. The box with the hubs and spindles was soaking wet and product was exposed. One of the boxes with tire and rim was torn open on the back. No apparent damage to any of the product. Typical UPS delivery.


Tires and wheels fit my 1970 airstream nice thanks.


These tires and rims worked great on my 1970 airstream just ordered 2 mire thanks.


Great transaction, fast & smooth. The wheels and tires are exactly as described.
I am using them on a small horse trailer that I am in the process of refurbishing.
Here's a "Before and After" view of the trailer, so you can see the difference just adding these wheels and tires have made.
Good quality product, I'm very satisfied.

Robert B.


Rim looks solid and well galvanized. Tire looks good but bought it for a spare so hopefully will never learn how it rides.


The right product for a good price delivered on time to my front door. Thank you!


Purchased a spare tire and mounting bracket for my boat trailer....arrived quickly and all pieces arrived with it.

The tire is used as a spare but the tire and rim seem like quality products...hopefully I'll never need it though!


My local trailer supply store ran out of the tires I needed so I ordered them from Even after the shipping charges to Hawaii I saved money on the tires and they look great!
Thanks etrailer!!
And an extra thank you to James for his excellent customer service!


Ordered from etrailer as a spare for my new Enclosed Cargo trailer. etrailer as always delivers promptly and well packaged .


Perfect fit/application. The tire packaging and shipping was fantastic. This was a better purchase option as compared to a local marine shop that offered a similar option. Thank you.


Fast and efficient order to delivery great price


Great quality easy installation!I will continue to purchase in future from etrailer!!!


I pull up etrailer as my "go to" source of trailer parts. My order of 3 wheels/tires was shipped quickly, delayed by the shipper a bit, but delivered in a reasonable time, and the quality of the wheels and tires was definitely worth waiting for. I'll be ordering more parts and pieces later this week.

Larry H.


I bought the wheels and tires to replace aging ones on a boat trailerboat that I had sold. I drove them 800 miles without incident and the new owner says that they have been used as expected. Good tires, great price. Ill be ordering another 8 soon, for two more boats.


I received exactly what I ordered in great condition. Thanks E Trailer


Product as described, delivered right on time, even in a hurricane (Idalia) around us.


hasn't been used, just needed a spare.


Extremely happy with the purchase. A great price and delivery. The tire and whew is just what I needed for my 2022Robalo266.
Highly recommend this company.


I bought this tire and wheel combo as a spare for my boat trailer. For any of you that purchase one of these, beware. The "triangles" in the wheel are full of large, sharp metal burrs so DO NOT handle the wheel using these openings or you will tear your fingers open like I did. Extremely poor quality workmanship.

Etrailer Expert

Mike L.


According to the manufacturer, the burrs you speak of are residue of the dipping process from when the wheels are galvanized.


Very pleased with the delivery and the performance of these tires. The rims came with a good galvanize coating which is needed for the salt water environment my boat trailer has to endure.


I bought a set of tires & wheels for our 1963 trailer. The old wheels were rusty, though the tires were still good (just a lighter tire.) It's now been a year and the wheels still look great!


I have a 10 year old dump trailer and the original equipment wheels were rusting and the tires would not hold pressure anymore. I reached out to my local tire shop and they suggested using galvanized wheels (I live in Maine with lots of road salt in winter). I said great order them up. He was not able to get them from his supplier and suggested I by they online. I found etrailer and thought the wheels looked like what I needed. Then I realized I could purchase the tires at the same time. The ordering process was clear and easy, the shipping was prompt and they wheels and tires are exactly what I needed.


Website is confusing and resulted in me ordering wrong tire and having to pay $[XX] to return tire.


I ordered 4- wheels and tires for the boat trailer, shipping was quick and everything looks good, overall couldn't be happier. And no problem with the look of the wheels as far as the occasional blemish. This is due to the dipping of the hot dip galvanizing, nature of the beast. Can beat it for the price. But...I will say, I wish they would offer balancing.


Not a run of the mill galvanized tire and wheel, being 6 lug, so getting one locally comes with a high price. Not only was the price reasonable, having it delivered to my doorstep was a double bonus.

Show More Reviews

See what our Experts say about this Kenda Trailer Tires and Wheels

  • Replacement Tire And Rim For A 2008 Statcraft Aruba TT
    When it comes to replacing tires on your 2008 Starcraft Centennial Camper you need to figure out what tire size you have, and what the bolt pattern is on your rim. I will attach a link below that shows you have to measure your bolt pattern so you can find the correct part below. The Karrier Tire # AM32666 is a 225/75R15 and has a bolt pattern of 6 on 5-1/2. This tire has a speed rating of 81 MPH. I attached a review video link below.
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  • Are The Trailer Tire And Wheel Combination Balanced
    The trailer tire and wheel combination is received from the supplier already with the tire mounted on the wheel. The supplier does not balance the combination, but when the tire is installed to the wheel they will line the high (heavy) spot on the tire with the low (light) spot on the wheel. This does not completely balance the tire and wheel combination but it does eliminate any excessive out of balance condition. I would recommend to balance the tire and wheel combination at a local...
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  • Recommended Tire For EzLoader Triple Axle Boat Trailer
    The Karrier ST225/75R15 Radial Trailer Tire # AM32666 will make an awesome spare tire. It meets all of the qualifications that your are looking for. It features a special boat trailer tire design, so it's going to couple the strength of a bias tire with the durability and stability of a radial tire. This is created specifically for trailers so it's not intended for use on other types of vehicles. It's going to feature double steel belts and full nylon plies that are going to combine for...
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  • Speed Rating of Kenda Karrier 225/75R-15 Tire Used on AM32666 Wheel/Tire Combo
    The Kenda Karrier 225/75-15 Load Range D tire used on the # AM32666 wheel/tire combo carries an M rating, which is good for up to 81 mph. As long as the TPMS sensors you used are compatible with rubber valve stems, they'll work just fine with this wheel/tire. I've linked to a product description video, where my buddy Cole will run you through the features of the wheel/tire.
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  • Replacing 8.75R16.5 Tires on Dual Axle Trailer
    There is a solution for you, though we only have light truck tires that will fit a 16.5 inch diameter wheel. Instead, you would need to replace your wheels with something that supports a more common tire size. I recommend the Kenda # AM32666, which has a galvanized steel wheel that fits on a 6 on 5-1/2 inch bolt pattern and uses ST225/75R15 tires that have a D load range.
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  • What Is The Backspacing of the Kenda Karrier ST225/75R15 Tire with Galvanized Wheel?
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  • What is the Maximum PSI of the Karrier ST225/75r15 Radial Tire with 15" Galvanized Wheel
    The Karrier ST225/75r15 Radial Tire # AM32666 has a maximum psi of 65 when at the maximum load rating of 2540-lbs.
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  • Smallest Wheel and Tire Combination Available with a 6 On 5-1/2" Lug/Bolt Pattern
    The Karrier ST225/75R15 Radial Trailer Tire with 15" Galvanized Wheel # AM32666 is the smallest wheel and tire size we carry with a 6 on 5-1/2" bolt pattern. Our 14" wheels will only have a 5 on 4-1/2" bolt pattern.
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  • Availability of 15 Inch Trailer Wheel with 6 Lugs
    We offer a number of wheel and tire and wheel options for 15 inch wheels with 6 on 5-1/2 inch wheel bolt patterns, but we do not offer a wheel exactly like the one in the photo you sent. The closest match I was able to find for the wheel in your photo is the Americana Steel Spoke Trailer Wheel, Glavanized Finish, 15 Inch x 6 Inch Rim, 6 on 5-1/2 Inch Wheel Bolt Pattern # AM20534. I have attached a review video of this wheel for you. This wheel is also available in the tire and wheel...
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    Yes, the Westlake ST225/75R15 Radial Trailer Tire w/ 15" Silver Mod Wheel part # LHAW124 will be a great match for a Forest Rover Heritage Glen 299RE. These 225/75-16 tires have a load range e rating which can support up to 2,830 lbs and they hold a 75 mpg speed rating. The wheels are six lug and have a silver powder coated finish so they will be great for a travel trailer.
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  • Replacement H78-15 Tires and Wheels for Trailer
    The modern equivalent to the H78-15 size tires you have on the trailer is a 225/75-15 tire. Changing the tires and wheels so that they are all the same size is definitely a good idea. For this tire size, I recommend the Kenda Karrier ST225/75R15 Radial Trailer Tire # AM10256. This is an excellent radial ply tire that features a maximum load of 2,540 pounds at 65 psi. It will fit 15 inch wheels with a 6 inch, 6-1/2 inch, or 7 inch width. For a tire and wheel combo to fill in the rest...
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  • Galvanized Wheel and Tire With 6 on 5-1/2 Inch Bolt Pattern
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  • E Rated Trailer Tire Recommendation for Tire Size ST225/75R15
    The rim itself would have no problem handling 80 psi as most trailer wheels easily handle quite a bit more. The valve stems might need to be upgraded to a higher capacity but normally that's replaced at the time of a tire replacement anyway. For a Load Range E tire in the size ST225/75R15 we have the Karrier part # AM10303 which has a capacity of 2,830 lbs at 80 psi and a speed rating of 81 mph.
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jeff D
Expert Research:
Jeff D
Employee Laura H
Updated by:
Laura H
Employee Mary K
Updated by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee Noah M
Updated by:
Noah M
Employee Cole B
Installed by:
Cole B

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